This document provides an overview of changes to material safety data sheets (MSDS) that are being implemented to comply with the Global Harmonization Standard (GHS) by 2015. Key changes include MSDS becoming safety data sheets (SDS) with a standardized 16-section format. Labeling must include standardized signal words, pictograms, hazard statements and precautionary statements. The document reviews the new SDS format and provides examples of what the new labels will look like. It emphasizes the importance of understanding the new labeling system so workers can safely handle, store and respond to hazardous chemicals.